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Australian Open: Amateur Luck upstages Spieth

20-year-old Curtis Luck shares the lead with Lucas Herbert after outscoring playing partner Jordan Spieth in the first round. Nadal vs Thiem

Australian Open: Amateur Luck upstages Spieth
PAUL MILLER EFE

Reigning US and Asia-Pacific amateur champion Curtis Luck upstaged playing partner and double-major winner Jordan Spieth in the first round of the Australian Open on Thursday.

In joint lead alongside Herbert

Luck shares the lead with fellow 20-year-old Lucas Herbert, after the two Australian young guns posted superb five-under par opening rounds of 67 at Royal Sydney Golf Club.

Former world number one Spieth could only manage a 69 as Luck came out on top of an illustrious threeball that also included 2006 US Open champion Geoff Ogilvy, who carded a 70.

World number seven and Australian favourite Adam Scott struggled to a one-over 73 later in the day.

Spieth: "He was spectacular"

Luck carded seven birdies and impressed world number five Spieth. "I thought he was better composed than I was, no doubt," the American said.

"Around the greens, he was spectacular, which is something that you certainly need to take with you up to the next level."

Starting at the 10th, Luck was far from overawed by playing alongside major winners Spieth and Ogilvy, completing his first 12 holes in four under par.

He lost momentum with consecutive bogeys but rebounded immediately with three straight birdies and a closing par.

Spieth lines up a putt on the 14th hole during day one of the Australian Open.

Luck: "I didn't do anything outrageously good"

"I don't think I did anything outrageously good to get where I was," said Luck, who is already assured of places in three majors next year - the US Masters, US Open and British Open.

Spieth, the 2014 Australian Open champion, had only one blemish on his card when a misjudged flop shot at the eighth saw the ball roll back to his feet and resulted in a bogey five.

"I made a couple of putts from outside five or six feet but that was it," said Spieth. "But they'll start falling. If I can shoot three under each day... then I'll be in good shape."

Scott drained two long birdie putts at the par-three sixth and 17th, but five bogeys spoiled the 2013 US Masters champion's day.

"I didn't drive it well, hit the irons well, chip it well or putt well today, it was all very average," Scott commented.

Scott hits an approach shot on the 10th hole during day one.

Herbert spurns chance to take outright lead

Herbert was bogey-free but missed a putt from three feet on the 18th that would have left him in ahead of Luck.

The top three players in Sydney who are not otherwise exempt will win direct entry into next July's British Open at Royal Birkdale.